junioratongi134 junioratongi134
  • 23-04-2017
  • Mathematics
contestada

Paulina invested $10,000 at two different rates, 4% and 6%. If her total interest income was $470, how much did she invest at each rate.

Respuesta :

CodrutRadu
CodrutRadu CodrutRadu
  • 23-04-2017
a+b=10000 (1)

4%a+6%b = 470
4a+6b = 47000 (2)

(1)*6 =>
6a+6b = 60000 (3)

(3)-(2)=>
2a=13000 =>

a = 6500
b = 3500
Answer Link
Aliwohaish12
Aliwohaish12 Aliwohaish12
  • 23-04-2017
0.04x+0.06(10000-x)=470
Solve for x
X=6500 at 4%
10000-6500=3500 at 6%
Answer Link

Otras preguntas

calculate the area of a square with sides of 5 inches
List 4 organelles involved in cell division
Which of the following lists the stages of the four-stroke engine cycle in the correct order of operation? a. Intake, compression, power, exhaust b. Exhaust,
Archaeologists Louis and Mary Leakeysome found some of the oldest human remains in __________ during the 1950s. a. South Africa b. Bolgatanga c. the Kalahari
what is 8divided by 288
President Andrew Jackson used his influence to encourage Congress to pass the Indian Removal Act of 1830. What was the result of the Indian Removal Act?
A one-topping pizza costs $15.00. Each additional topping costs $1.25. Let x be the number of additional toppings. You have $20 to spend. Which equation can you
An elected leader in a parliamentary democracy is called a. monarch regent prime minister magistrate
( 4,?)Is on the line y=2×+3. find the other half of the coordinate
Frustrated that early explorations did not produce a route to the East, England sought return on its investment byA=fishingB=entering the fur tradeC=looting Spa